2．The government isalarmed（警覺(jué)）by the sudden increase in the violent crime．

分析 政府對(duì)暴力犯罪的突然增加感到震驚．

解答 答案 alarmed考查過(guò)去分詞．根據(jù)所給的漢語(yǔ)提示"警覺(jué)"和空前的系動(dòng)詞is及空后的by可知，此句是被動(dòng)語(yǔ)態(tài)，此處應(yīng)用動(dòng)詞的過(guò)去分詞形式，故填 alarmed．

點(diǎn)評(píng) 動(dòng)詞是中學(xué)英語(yǔ)的重要語(yǔ)法，解題時(shí)首先要根據(jù)語(yǔ)境和句子結(jié)構(gòu)的需要來(lái)推斷動(dòng)詞的形式，然后根據(jù)句意和所給的漢語(yǔ)提示選出正確答案．

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